XHProf: Hierarchical Profiler Report

Diff Report: Run #51978d4d92dd9: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51978cc86c728: XHProf Run (Namespace=drupal-perf-cottser)
Tip: Click a function name below to drill down.

Symfony\Component\HttpFoundation\Request::getAcceptableContentTypes	Run #51978d4d92dd9	Run #51978cc86c728	Diff	Diff%
Number of Function Calls	3	3	0	0.0%
Incl. Wall Time (microsec)	721	716	-5	-0.7%
Incl. Wall Time (microsec) per call	240	239	-2	-0.7%
Excl. Wall Time (microsec)	30	29	-1	-3.3%
Incl. CPU (microsecs)	729	725	-4	-0.5%
Incl. CPU (microsecs) per call	243	242	-1	-0.5%
Excl. CPU (microsec)	29	28	-1	-3.4%
Incl. MemUse (bytes)	95,344	95,360	16	0.0%
Incl. MemUse (bytes) per call	31,781	31,787	5	0.0%
Excl. MemUse (bytes)	1,000	1,000	0	0.0%
Incl. PeakMemUse (bytes)	95,664	95,480	-184	-0.2%
Incl. PeakMemUse (bytes) per call	31,888	31,827	-61	-0.2%
Excl. PeakMemUse (bytes)	1,576	1,576	0	0.0%

Function Name	Calls Diff	Calls Diff%	Incl. Wall Diff (microsec)	IWall Diff%	Incl. CPU Diff (microsec)	ICpu Diff%	Incl. MemUse Diff (bytes)	IMemUse Diff%	Incl. PeakMemUse Diff (bytes)	IPeakMemUse Diff%
*Current Function*
Symfony\Component\HttpFoundation\Request::getAcceptableContentTypes	0	N/A%	-5	-2.0%	-4	-3.3%	16	0.1%	-184	-0.8%
Exclusive Metrics Diff for Current Function			-1	-20.0%	-1	-25.0%	0	0.0%	0	0.0%
*Parent function*
Drupal\Core\ContentNegotiation::getContentType	0	N/A%	-5	-100.0%	-4	-100.0%	16	100.0%	-184	-100.0%
*Child functions*
Symfony\Component\HttpFoundation\AcceptHeader::fromString	0	N/A%	-3	-60.0%	-2	-50.0%	16	100.0%	-184	-100.0%
Symfony\Component\ClassLoader\ApcClassLoader::loadClass	0	N/A%	-1	-20.0%	-1	-25.0%	0	0.0%	0	0.0%
array_keys	0	N/A%	0	0.0%	-1	-25.0%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\AcceptHeader::all	0	N/A%	0	0.0%	1	25.0%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\HeaderBag::get	0	N/A%	0	0.0%	0	0.0%	0	0.0%	0	0.0%